Table Habit

Github项目地址: https://github.com/FriesI23/mhabit
F-Droid商店地址: https://f-droid.org/packages/io.github.friesi23.mhabit

"Table Habit" is an app that helps you establish and track your own micro habit. Its includes a complete set of growth curves and charts to help you establish habits more effectively.

Moreover, this app completely open source.